“Heavy Metals Contamination in Water, Soil and Plant Samples of Okomu National Park, Edo State, Nigeria”, AJBR, c. 23, sy 1, ss. 29–34, Oca. 2020, Erişim: 05 Nisan 2026. [çevrimiçi]. Erişim adresi: https://ojshostng.com/index.php/ajbr/article/view/859